Weir shutter



NOV. 26, .1929. F, JERM 1,737,311

WEIR SHUTTER Filed June l5. 1927 Patented Nov. 26, 1929 f l UNITED STATES PATENT oFFlcE FRANTISEK JERMR, 0F oPAvA, CZECHOSLOVAKIA WEIR SHUTTER Application filed .Tune 13, 1927, Serial No. 198,595, and in Czechoslovakia January 5, 1927.

This invention relates to a weir of the kind pivoted at one end to fixed supports situated wherein a horizontally hinged weir shutter at the low-water side of the weir and at the is adjusted by means of cables and conother end to the cylindrical edge of the shuttrolled by links whereon it can be raised from ter so as to form hinge elements and struts its seat so as to be accessible above the Water for the same, and cables for adjusting the surface for cleaning, Jfor repairs and for dryshutter about the hinge elements and for rais- 55 ing purposes. ing it about the fixed link supports.

The object of the invention is to produce v a Weir of simple construction having a shut FRANTISEK J ter which is rigidly supported by the Substructure and which forms automatically a 6o tight lit, and the invention consists in the provision of a shutter having a cylindrical lower edge whereby it rests normally on a tightening strip, the shutter being supported 65 by links which are pivoted at one end to the shutter and at the other end to fixed supports situated at the low-water side of the weir.

The accompanying drawing represents a 0 side View of the arrangement.V Y 70 The weil' shutter l is formed with a cylindrical lower edge 3 of wood or metal whereby the shutter rests against a tightening and supporting strip 4 made of wood, metal, concrete or the like and built into the substrucn 75 ture 5. The shutter is retained on the strip by means of links 6 which are pivoted at 8 to the shutter and at 7 to fixed supports 9 situated at the low-water side of the weir. The free end of the shutter is controlled by 80 cables 2 which are operated by a winch 10 for swinging the shutter aboutthe hinges 8 for regulating the weir while the cylindrical surface 3 maintains a tight joint with the strip 4. The dotted outlinesA la and 2a show -85 the shutter in the horizontal and lowermost position. Another cable or Set of cables llcon- 'nects the winch 10 with the shutter so that it can be raised bodily into the position shown 40 by the dotted lines lb and 2b while the links j 90 6 swing about the pivots 7. In the raised position, the shutter is quite clear of the water and is therefore readily accessible tor eifecting repairs as well as for cleaning and drying. 95

I claim: A weir of the character described comprising a weir shutter having a cylindrical lower edge, a tighteningstrip supporting the shutter by contact with said edge, links 10o 

